GitLab

+ fixed race

This commit turns all dial logs into log.Events.

Everything's great except for one problem:
The LoggableMap I'm using does not print out things
correctly. I gave it peer.IDs, and Multiaddrs
and both got logged as nothing `{}` (didn't even call
their String() methods!) So, for now, this function
encodes it when called... This is wrong and should be
fixed before being merged in. Otherwise we  will be
constantly encoding peer.IDs and Multiaddrs without
needing to.

@briantigerchow how do you suggest doing this?
I don't know my way around your Loggable.

```Go
e := log.EventBegin(ctx, "provide")
e.Done()

e := log.EventBegin(ctx, "provide")
e.Close() // implements io.Closer in case you want to register with some lifecycle management system.
```

Good thing, i checked one wrong, too!

Queries now can be cancelled and the resources collected

This also makes it an Error to find a peer.

this commit adds a logger with prefixes

This commit makes all network tests use ZeroLocalTCPAddress
as the initial peer address, and then relies on
net.ListenAddresses()

This should get rid of the tcp addr clash problems.

The crypto package moves into p2p. Nothing in it so far is ipfs
specific; everything is p2p-general.

I think it's time to move a lot of the peer-to-peer networking
but-not-ipfs-specific things into its own package: p2p.
This could in the future be split off into its own library.
The first thing to go is the peer.

refactor test peer creation to be deterministic and reliable

a bit of cleanup trying to figure out TestGetFailure

add test to verify deterministic peer creation

switch put RPC over to use getClosestPeers

rm 0xDEADC0DE

fix queries not searching peer if its not actually closer

cc @jbenet

This commit introduces a reader and writer that respect
contexts. Warning: careful how you use them. Returning
leaves a goroutine reading until the read finishes.

this is a major refactor of the entire codebase
it changes the monolithic peer.Peer into using
a peer.ID and a peer.Peerstore.

Other changes:
- removed handshake3.
-	testutil vastly simplified peer
-	secio bugfix + debugging logs
-	testutil: RandKeyPair
-	backpressure bugfix: w.o.w.
-	peer: added hex enc/dec
-	peer: added a PeerInfo struct
  PeerInfo is a small struct used to pass around a peer with
 	a set of addresses and keys. This is not meant to be a
 	complete view of the system, but rather to model updates to
 	the peerstore. It is used by things like the routing system.
-	updated peer/queue + peerset
-	latency metrics
-	testutil: use crand for PeerID gen
 	RandPeerID generates random "valid" peer IDs. it does not
 	NEED to generate keys because it is as if we lost the key
 	right away. fine to read some randomness and hash it. to
 	generate proper keys and an ID, use:
 	  sk, pk, _ := testutil.RandKeyPair()
 	  id, _ := peer.IDFromPublicKey(pk)
 	Also added RandPeerIDFatal helper
- removed old spipe
- updated seccat
- core: cleanup initIdentity
- removed old getFromPeerList

not changing this because i don't want to write a test for it now

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

addresses https://github.com/jbenet/go-ipfs/pull/438#discussion_r21952271

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>